Former Test opener Simon Katich believes the 300-plus scores that have been the norm the series against India are not a flash in the pan after David Warner and Aaron Finch dominated at Manuka Oval on Wednesday.
Warner and Finch posted a 187-run opening stand in just 177 balls to set up the hosts' monstrous total of 8-348.
It is the first time in the series Australia have batted first after successfully chasing down big totals in the first three games to take an unassailable 3-0 lead. 
Despite Warner batting out a maiden against Umesh Yadav in the first over, the hard-hitting pair blasted 50 off 38 balls to set up a huge run-chase for India.
Warner looked set for his fifth one-day international hundred but departed for 93 off 91 balls when he was bowled attempting to slog Ishant Sharma through mid-wicket.
Finch (107 off 107 balls) went on to secure his second ton in as many games at Manuka, backing up his 109 off 127 balls in last summer's win over South Africa.
It is also the third straight summer Australia have batted first in Canberra and posted more than 300 after doing so in wins over West Indies and South Africa.
The Manuka Oval is traditionally batting friendly but Katich feels the advent of Twenty20 cricket means scoring at greater than a run-a-ball is now expected in the 50-over game.
"The game always evolves, and Twenty20 has been great in that the batsmen's mindsets have changed now going into one-day internationals," Katich said.
"It allows for attractive cricket and scores of 350 are very possible. Because the mindset is so different to 20 years ago and they know they can go out there and score well over a run-a-ball."
After Warner's departure Australia experimented by promoting Mitch Marsh to No.3, but the young all-rounder struggled to get going in making 33 off 42 balls.
Skipper Steve Smith then raced to 50 off 27 balls.
His innings ended soon after on 51 when he was caught off the bowling of Sharma.
Fresh from his superb match-winning 96 in Melbourne on Sunday, Glenn Maxwell (41 off 19 balls) finished the innings with some brilliant innovative stroke-play, including 18 off the last over of the innings from Sharma.
No Indian bowler was spared, but opening bowler Bhuvneshwar Kumar (0-69 off eight overs) was belted everywhere.
Sharma (4-77) and Yadav (3-67) were the pick of a poor Indian bowling line-up.
Meanwhile, batsmen are dominating one-dayers like never before and even the umpires are looking for greater protection, with John Ward becoming the first umpire to wear a helmet in an international match at Manuka Oval on Wednesday.
His colleague, Englishman Richard Kettleborough, was taken off the field and replaced by Paul Wilson after being hit on his right leg by a Finch straight drive.
But it was Ward's headgear that raised the most eyebrows.
Ward has opted for the helmet after he suffered a blow to the head in an Indian domestic game.
Gerard Abood wore a helmet during a Big Bash League game between Melbourne Renegades and Perth Scorchers.
Kettleborough suffered swelling on his shin and a numb foot and did not return for India's run chase.With AAP


SCOREBOARD        One-day international
AUSTRALIA v INDIA
At Manuka Oval
AUSTRALIA 
Batsman                     R B
D Warner b I Sharma    93 92
A Finch c I Sharma b Yadav   107 107
M Marsh c Kohli b Yadav           33 42
S Smith c Singh Mann b I Sharma  51 29
G Maxwell c (sub) b I Sharma          41 20
G Bailey c R Sharma b I Sharma  10 7
J Faulkner b Yadav              0 1
M Wade run out (R Sharma)     0 2
J Hastings not out              0 0
Sundries (7lb, 6w)           13
8 wickets for                                348
Fall: 187 (Warner), 221 (Finch), 288 (Marsh), 298 (Smith), 319 (Bailey), 319 (Faulkner), 321 (Wade), 348 (Maxwell)
Bowling: U Yadav 10-1-67-3 (2w), B Kumar 8-0-69-0, I Sharma 10-0-77-4 (2w), G Singh 3-0-24-0, R Dhawan 9-0-53-0 (1w), R Jadeja 10-0-51-0.
Overs: 50
Umpires: R Kettleborough (England) and J Ward
Match Referee: Jeff Crowe (NZ)